φύσει
belongs to
ἀγόντων (Schneider) rather than to
εἶναι (Stallbaum and others), as is clear from the antithesis
χρῆσθαι δ’ οὐδεὶς αὐτῷ ὀρθῶς (explained in 525 C).
τό γ’ ἐμοὶ δοκοῦν
. Cf. 517 B note Plato is careful to eschew the appearance of dogmatism, even where his convictions are most profound.
ὡς ἱκανῶς κτλ.
is taken by Krohn (
Pl. Fr. p. 91) as excluding the possibility of Ideas of concrete things. Such an inference is unwarranted.
ἱκανῶς, ‘adequately’ ‘satisfactorily’ (cf. E below), does not imply that sensation can apprehend
everything there is to know about e.g. a finger, but merely that in the case of a finger etc., sensible perception is as a rule all that we demand: we are not impelled to summon
νόησις to our aid. Even the perception of a finger
may awaken the intelligence, and in such cases we shall be led to the Idea of finger (523 D note).
ὡς τῆς αἰσθήσεως κτλ.
On
αἰσθήσεως see 523 C note
ποιούσης has been doubted by Ast, who conjectures
νοούσης; “sed
αἰσθήσεως non est
νοεῖν” (Schneider). The Greek means ‘produces no sound result,’ “nichts zuverlässiges giebt” (Schneider): the product of sensation is, in such cases,
ὕπουλον or
νοσῶδες. For
οὐδὲν ὑγιές metaphorically used cf.
Phaed. 90 E
and (with Schneider)
Ar.
Plut. 50
, 355 (
πρὸς ἀνδρὸς οὐδὲν ὑγιές ἐστ’ εἰργασμένου).
τὰ πόρρωθεν κτλ.
readily suggest themselves to Glauco, for they were familiar examples of optical delusion in the Platonic school: cf. (for
πόρρωθεν φαινόμενα )
Prot. 356 C
,
Theaet. 191 B
, infra X 602 C ff., and (for
ἐσκιαγραφημένα) II 365 C note
αἴσθησιν
. Strictly speaking, of course,
αἴσθησις by itself does not, and cannot, present us with a judgment of any kind. It merely furnishes a particular sensation, which is referred to our mental picture of the objects in question, and the resulting judgment is not
αἴσθησις, but
δόξα, which is, according to Plato, a combination of
μνήμη and
αἴσθησις (see
Phil. 38 B
ff. with Bury's notes). And in point of fact, the sort of contradictory judgments which are here ascribed to the initial step in the psychological process, viz.
αἴσθησις (524 A), have already been attributed to
δόξα in V 479 B—479 E. We have already seen that Plato throughout the whole of this part of the
Republic is not careful to distinguish between
αἰσθητόν (especially
ὁρατόν) and
δοξαστόν (VI 510 A note); and the same tendency shews itself again here. But in this part of the dialogue, Plato's argument is no way affected by his imperfect analysis of the psychological process involved in such a judgment as ‘This is a finger.’ The relevant consideration is that in such cases the intellect is not, as a rule, aroused, and this is equally true whether we regard the judgment as an act of
αἴσθησις alone or as the joint product of
αἴσθησις and
μνήμη.
εἴτ’ ἐγγύθεν κτλ.
(like
ὡς ἐγγύθεν etc. below) is said to prevent misapprehension, in view of Glauco's
τὰ πόρρωθεν etc. in B.
ὧδε δὲ κτλ.
The best commentary on the following exposition is
Phaed. 101 A
ff., especially 102 B ff.: cf. also
Theaet. 154 C
. These passages should be carefully read in connexion with the view enunciated here. I have endeavoured to explain some of the wider bearings of Plato's principle in a pamphlet on Classical Education published by Deighton, Bell and Co. 1895: see also App. II and Nettleship
Hellen. pp. 152 ff. We should bear in mind that the antithesis of
ἕν and
πολλά was the
fons et origo of Greek philosophy, and runs throughout its entire history. In Plato's time the question had become acute in connexion particularly with the problem of predication, and it was in trying to solve this special form of the antinomy that Plato devised his theory of Ideas. Nothing could be more natural or just than that his philosopher-kings should receive their first scientific impulse from the problem which had proved so great an intellectual stimulus in the past, and which had also led Plato himself to the goal whither he would have his guardians arrive, the contemplation of the Idea.
ἐάν τε ἐν μέσῳ κτλ.
:
i.q.
<*>άν τε ἐν μέσῳ ᾖ ὁ ὁρώμενος κτλ. This is said with reference to their size: cf. E below and
Phaed. 102 B
, C, where the difficulty is explained by the theory of Ideas. Thus
b is both great and small, great relatively to
a, small relatively to
c. Similarly with the other antinomies. The
Philebus dismisses such puzzles as
τὰ δεδημευμένα τῶν θαυμαστῶν περὶ τὸ ἓν καὶ πολλά (14 D)—an indication perhaps of the priority in date of the
Republic (cf. VI 505 C note and Jackson in
J. Ph. X pp. 263 ff.).
ἀναγκάζεται
is said of the ‘Drang nach Wahrheit’: cf. 524 C, E, 525 D and 518 E ff. It is not the ‘nature’ of Soul to acquiesce in falsehood: for man is an
οὐράνιον φυτόν, οὐκ ἔγγειον (IV 443 B note).
τῶν πολλῶν
. Some exceptional natures, who are endowed with an uncommon share of noble curiosity, may find intellectual stimulus even in perceptions such as these: cf. 523 B note Ast, who missed the point, wanted to excise the phrase. Herwerden seriously proposes
<μὰ> τὸν Ἀπόλλω.
οὐδαμοῦ
: ‘at no stage’ viz. in the psychological process, not exactly ‘never’ (as Jowett, D. and V. etc.).